Overview and Highlights FZJ Andreas Lehrach, FZJ and RWTH Aachen - PowerPoint PPT Presentation

Overview and Highlights FZJ Andreas Lehrach, FZJ and RWTH Aachen Subtopic coordinator ARD ST2 March 6 th , 2019 5 th Annual MT Meeting Helmholtz Institute Jena 1 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Outline I ntroduction P rogress First deuteron EDM measurement at COSY Technical developments for proton EDM ring Developments at COSY for HESR and EDM Novel polarized proton source C onclusion & P lans 2 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Stepwise Approach for EDM Measurements of charged particle EDMs from COSY to a prototype and final EDM storage ring Cooler Synchrotron COSY Prototype EDM Ring • Prototype EDM ring • Ideal starting point for R&D work • Energy 35 - 45 MeV, CW-CCW beams Deliver first direct EDM • • Pure electric and combined E/B measurement for deuterons • Length roughly 100m  Design of a final EDM storage ring 3 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

EDM Precursor Experiment at COSY HIGHLIGHT: FIRST DEUTERON EDM MEASUREMENT PRECURSOR EXPERIMENT AT COSY Waveguide RF Wien filter Commissioning: Spin rotation Beam position monitor Copper electrodes Ferrite cage Vacuum vessel Belt drive for 90 ° First ever deuteron EDM measurement rotation Installation in COSY Glance into its EDM Limits for COSY: inside Statistical sensitivity: 10 -(23-24) e ∙cm Systematics due to Imperfections & alignment: ~ 10 -19 e ∙cm 4 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Design Study for Prototype EDM Ring Beam Parameter for PT EDM Ring A. Lehrach, S. Martin, R.M. Talman, Design of a Prototype EDM Storage Ring, PoS(SPIN2018) 144. 5 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Deflector Development Static ExB deflector Challenge: Investigate/demonstrate the feasibility of ExB deflector for deuteron EDM storage ring with 10 MV/m and 0.3 T. Study breakdown behavior in presence of magnetic fields Simulation of electron trajectories Setup of electrodes using existing ANKE Magnet Feed- Throughs Electrodes Actuators + - with E field B-field: 0 T B y + - Shield-Tighteners Commissioning in April this year with ExB field B-field: 0.15 T Different shapes of electrodes will be tested 6 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Stochastic Cooling HESR slot-ring couplers Plans: • Further development of the slot ring couplers in terms of aperture limitation, frequency range and resonant design Successfully tested with PANDA • Development of algorithms cluster target at COSY to adjust stochastic cooling while cooling is in operation PANDA Cluster-Target with Stochastic Cooling 1 • Study of cooling structures 15 horizontal / vertical 0,5 beam-size in mm for colliding beams without cooling 10 with cooling 0 beam current -0,5 5 • Stochastic cooling with -1 weak focusing EDM lattice 0 -1,5 17:16:48 17:19:41 17:22:34 17:25:26 17:28:19 17:31:12 time Poster by Nikolay SHURKHNO (FZJ) Courtesy: Rolf STASSEN (FZJ) 7 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Electron Cooling PANDA cluster target Plans: Best e-cooling (reduced thickness, 3∙10 14 ) e-cooling with 0.6 A performance observed Modeling with fast stochastic • Cooler hardware transverse pre-cooling • Cooling process • Compensation schemes Successful electron cooling down to dP /P = 3.85∙10 -5 Improve transverse cooling I e = 0.6 A, with barrier bucket Move 2 MeV cooler to HESR Benefits heavy ion operation – 10 min 2438175 2438250 2438350 2438200 2438260 2438340 f / MHz f / MHz P = 2425 MeV/c Courtesy: Seva KAMERDZIEV (FZJ) Poster by Arthur HALAMA (FZJ) 8 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Precision Beam Control Enhanced orbit control – Novel BPMs for EDM Development @ – New BPM electronics – Orbit correction software Automatic correction & feedback Developed together with industry partners Tune measurement during ramping Detailed and time-correlated archiving of beam parameters 10 min Plans: • Beam instrumentation for HESR • Beam instrumentation developments for EDM Tune feedback in flat top and during acceleration Courtesy: Bernd LORENTZ (FZJ) 9 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Prototyping and Beam Physics MU MT MT MT Beam Position Deflector Development Monitor Prototype MU MT & MU RF Wien Filter Ion Source for ELENA MT at CERN MT Waveguide Siberian Snake COSY Polarized RF Wien Filter Ion Source 2 MV Electron Cooler Beam and Spin Dynamics EDM accelerator component tests and experiments with spin at COSY 10 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Development of a Novel Polarized Source Nuclear polarized H atoms from HCl gas jet Principle Assembly at IKP Nozzle F or HCl gas jet IR/UV Laser F or photo-dissociation & polarization of H atoms, 100 mJ @ 1064 nm, 20 mJ @ 213 nm, 5 Hz, 170 ps Lamb-Shift polarimeter Start of measurements: May 2018 For measurement of nuclear polarization R. Engels et al., Rev.Sci.Instrum. 74 , 4607 (2003) Method described in: Build in cooperation: IKP 2 and 4, PGI-6, and University of Crete T. P. Rakitzis, Chem.Phys.Chem. 5 , 1489 (2004) 11 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Laser-Plasma Acceleration Two new laser systems (JuSPARC I): • (40 mJ / 30 fs / 1 kHz) for SOFT X-RAY MAGNETO OPTICS • (50 µJ / 100 fs / 10 MHz) for PHOTOELECTRON SPECTROSCOPY • Participation in ATHENA e : • Participation in ATHENA h : kHz Betatron radiation source Polarized targets for proton and ion acceleration (and maybe, electrons) Injection of as electron bunches from nm-sized solid targets into a wake field Simulation results: Development of polarized targets: Simulation results: Development of cluster targets: Nuclear polarized Proton spin rotation during H atoms from HCl jet TNSA acceleration Talk by Anna HÜTZEN (FZJ) Cooperation partners: FZJ, HHUD, WWU, Univ. of Crete, SIOM 12 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Conclusion & Plans Conclusion: - First deuteron EDM measurement at COSY - Conceptional design of Prototype EDM Ring - Technical developments (Deflector, BPMs, …) - Successful beam test at COSY for HESR and EDM Plans: - Push limit for Deuteron EDM measurement at COSY - R&D work and technical design for prototype and final EDM storage ring - Advanced phase-space cooling and beam control for FAIR (and EDM) - Development of a novel polarized source Deliverables for EDM Storage Rings: - Scientific Input for The European Strategy for Particle Physics (ESPP) - Executive Summary to CERN Physics Beyond Colliders (PBC) - Design Report for Proton EDM Ring 13 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Search for Electric Dipole Moments Approach: EDM search in time development of spin in a storage ring: B “Freeze“ horizontal spin precession; watch for development of a vertical component ! A magic storage ring for protons (electrostatic), deuterons, and helium-3 One machine particle p (GeV/c) E (MV/m) B (T) with r ~ 30 m proton 0.701 16.789 0.000 deuteron 1.000 -3.983 0.160 3 He 1.285 17.158 -0.051 14 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

Status of HESR at FAIR High-Energy Storage Ring (HESR) in time and budget • All Dipoles produced, tested in Jülich and 65% are delivered to FAIR • Quadrupoles are all produced in Jülich • Two assembly lines for the quadrupole groups in the arcs are in preparation • Sextupoles, steerers and their power converters are in production(Romania), magnets arriving continuously in Jülich • Nearly all other power converters are produced, in Jülich. • RF equipment is in mechanical design • Stochastic cooling equipment, Beam diagnostics and Injection kickers are in production 15 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach

lide 16 Production of Polarizted Proton Beams Alignment of 100 mJ @ 1064 nm HCl bonds Photo-dissociation 20 mJ @ 213 nm and polarization of the H nucleus ~ c Acceleration of the protons in gas jet 300 J @ 800 nm 16 5 th Annual MT Meeting, March 5-7, 2018, Jena HZB A. Lehrach